CN215718437U - Ladder climbing mechanism and elevator shaft - Google Patents

Abstract

The utility model relates to the technical field of elevators, in particular to a ladder climbing mechanism and an elevator shaft. A ladder climbing mechanism is arranged in an elevator shaft and comprises a safety component and a ladder climbing component with a storage state and a use state, wherein the safety component comprises a safety switch and a bracket for hanging the ladder climbing component; when the ladder climbing assembly is switched between a storage state and a use state, the safety switch is triggered and sends a signal to a control mechanism of the elevator; the cat ladder subassembly is including the pivot and the cat ladder main part that can trigger safety switch, and when the cat ladder subassembly was in the state of depositing, the cat ladder main part hung in support and parallel the elevator well is settled, and when the cat ladder subassembly switched to the user state from the state of depositing, the cat ladder main part with the pivot was inside rotatory to the elevator well as rotation center to make the cat ladder main part switch to the user state. The utility model has the advantages that: can avoid elevator and cat ladder main part to take place to interfere, need not to increase the size of elevator well, save the cost.

Description

Ladder climbing mechanism and elevator shaft

Technical Field

The utility model relates to the technical field of elevators, in particular to a ladder climbing mechanism and an elevator shaft.

Background

Be equipped with the elevator in the elevator well, maintainer need regularly get into the elevator well in overhauls and maintain elevator system, and the in-process needs use the cat ladder main part to scramble the operation.

In current elevator well, the cat ladder main part is for being on a parallel with the fixed laying of the upright normality of well wall usually, and the maintainer can directly use the cat ladder main part to carry out the operation at the maintenance in-process.

In the prior art, because the cat ladder main part is fixed and is laid, for avoiding each part in the elevator well to produce with the cat ladder main part and interfering when the elevator normally operates, for satisfying the distance between cat ladder main part and the elevator well moving part, the distance requirement between cat ladder main part and elevator well lateral wall simultaneously, consequently need increase the size of elevator well.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a ladder climbing mechanism, which adopts the following technical scheme:

a ladder climbing mechanism is arranged in an elevator shaft and comprises a safety component and a ladder climbing component with a storage state and a use state, wherein the safety component comprises a safety switch and a bracket for hanging the ladder climbing component; when the ladder stand component is switched between a storage state and a use state, the safety switch is triggered and sends a signal to a control mechanism of the elevator; the cat ladder subassembly is including can triggering safety switch's pivot and cat ladder main part, when the cat ladder subassembly is in the state of depositing, the cat ladder main part hang in the support is parallel the elevator well is settled, when the cat ladder subassembly switches to the user state from the state of depositing, the cat ladder main part with the pivot is centre of rotation to the inside rotation of elevator well, so that the cat ladder main part switches to the user state.

Due to the arrangement, when the rotating shaft contacts the safety switch, the ladder stand main body is in a storage state, and when the elevator ascends and descends, the ladder stand main body cannot interfere with the ladder stand main body; when the rotating shaft is separated from the safety switch, the control mechanism of the elevator can be used as a signal for stopping the elevator to avoid the collision between the elevator and the ladder stand component, and the ladder stand main body is in a use state; in addition, the size of the elevator shaft does not need to be increased in order to prevent the moving parts such as the elevator from interfering with the ladder main body, thereby saving the cost.

In one embodiment, the safety switch is arranged on the support, a slide is arranged on the support, one end of the slide is close to the safety switch, and the rotating shaft penetrates through the slide and can slide in the slide.

So set up, the cat ladder main part is realized being connected all the time with safety subassembly through the pivot, makes things convenient for the user of service to realize triggering or not triggering safety switch through the lift cat ladder main part, and the pivot is at the slide internal motion, and the slide provides the track for the motion of pivot for the pivot can be accurately fix a position safety switch.

In one of them embodiment, the support includes relative first end and the second end that sets up, the slide includes first way and the second way of intercommunication each other, first axis is on a parallel with the axis of elevator well, the axis of second way with first axis nonparallel, be equipped with spacing portion in the second way, spacing portion can restrict the pivot landing extremely in the first way.

So set up for the cat ladder main part can be driven and the lifting by the pivot, and the pivot slides in the second says and accept in the second says.

In one embodiment, the distance between the bottom wall of the second channel and the first end is L₁The distance from the safety switch to the first end is L₂And L is₁>L₂。

So set up, can make the pivot when getting into the second in saying, can touch safety switch.

In one embodiment, the second track is arcuate.

So set up for the pivot can slide smoothly in the slide and avoid producing the card pause.

In one of them embodiment, the support includes interconnect and the perpendicular fixed part and the installation department that sets up, the fixed part install extremely on the wall of a well of elevator, one side orientation of installation department is kept away from the direction of fixed part extends, the slide is seted up on the installation department, safety switch locates on the installation department, the second is said relatively first being close to the fixed part setting.

So set up for when the pivot changes over to the second in saying, the cat ladder main part can be close to the lateral wall of elevator well, from not influencing the normal operating of elevator, need not increase the size of elevator well in order to dodge the elevator, reduce cost.

In one embodiment, the fixing portion has a plurality of first mounting holes and a second elongated mounting hole, and the second mounting hole is located between the first mounting holes.

So set up, be convenient for adjust the mounted position of fixed part.

In one embodiment, the number of the supports is two, the two supports are arranged on two sides of the ladder stand assembly, the rotating shaft sequentially penetrates through the two slide ways, and the distance between the two slide ways is smaller than the length of the rotating shaft.

So set up, can prevent that the pivot from droing in the slide.

In one embodiment, the ladder stand main body comprises two side beams and a plurality of pedal rods, the pedal rods are arranged between the two side beams in parallel and at intervals, and the rotating shaft is rotatably connected to the two side beams and is positioned at one end of each side beam close to the safety assembly; one ends of the two side beams are located between the two brackets, and the side walls of one ends of the two side beams are respectively abutted against the side walls of the two brackets and can slide along the side walls of the brackets.

So set up, can lead the slip of positive pivot in first way, simultaneously, the curb girder can play the backstop effect with the lateral wall butt of support, avoids the pivot to take place lateral shifting and drops in the follow slide.

The utility model also provides the following technical scheme:

the elevator shaft comprises the ladder climbing mechanism in the elevator shaft, and the ladder climbing mechanism is arranged in the elevator shaft.

Compared with the prior art, the ladder climbing mechanism provided by the utility model has the advantages that the rotating shaft is arranged, so that the rotating shaft can be in contact with or separated from the safety switch, when the rotating shaft is in contact with the safety switch, the ladder climbing main body is suspended and is parallel to the elevator shaft, and the ladder climbing main body is in a storage state at the moment, so that the elevator and the ladder climbing main body can be prevented from being interfered; when pivot and safety switch separation, the cat ladder main part can use the pivot to rotate as the inside of rotation center towards the elevator well for the cat ladder main part can supply the maintainer to use, and safety switch sends the signal to control mechanism simultaneously, and control mechanism control elevator stop motion is in order to avoid elevator and cat ladder main part to bump.

Drawings

FIG. 1 is a schematic view of a ladder climbing mechanism provided by the present invention when not in use;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the ladder climbing mechanism provided by the present invention in use;

FIG. 4 is a perspective view of the ladder climbing mechanism in use;

fig. 5 is a partially enlarged view of fig. 4 at B.

The symbols in the drawings represent the following meanings:

100. an elevator shaft; 10. an elevator hoistway; 101. a hall door; 20. a ladder climbing mechanism; 21. a security component; 211. a support; 201. a first end; 202. a second end; 2111. a fixed part; 2111a, a first mounting hole; 2111b, a second mounting hole; 2112. an installation part; 2112a, a slide; 2112b, first pass; 2112c, second lane; 2112d, a limiting part; 212. a safety switch; 22. a ladder assembly; 221. a rotating shaft; 222. a ladder climbing main body; 2221. a side beam; 2222. a pedal lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, the present invention provides an elevator shaft 100, the elevator shaft 100 includes an elevator shaft 10 and a ladder climbing mechanism 20, the ladder climbing mechanism 20 is disposed in the elevator shaft 10, and the ladder climbing mechanism 20 is used for a service person to climb during service and maintenance.

Preferably, a hall door 101 is provided in the elevator shaft 10, and the hall door 101 is used for entry/exit of a serviceman for maintenance of an elevator or the like.

Further, the elevator shaft 10 has components such as an elevator (not shown) and a control mechanism (not shown), and the elevator performs a lifting motion along the axial direction of the elevator shaft 10 in the elevator shaft 10 to drive the target to lift to a corresponding designated floor. The control mechanism is used to control the movement of the elevator within the elevator hoistway 10.

As shown in fig. 1, the ladder climbing mechanism 20 comprises a safety assembly 21 and a ladder climbing assembly 22, wherein the safety assembly 21 can generate a signal that the ladder climbing assembly 22 is in a storage state or a use state, and the ladder climbing assembly 22 can be separated from the safety assembly 21 so that the control mechanism controls the elevator to stop running, thereby avoiding the interference collision between the elevator and the ladder climbing assembly 22.

Specifically, the safety assembly 21 includes a bracket 211 and a safety switch 212, the bracket 211 is fixed on a sidewall of the elevator shaft 10, the safety switch 212 is disposed on the bracket 211, the safety switch 212 is in signal connection with a control mechanism, when the safety switch 212 is triggered by the ladder assembly 22, the safety switch 212 is in signal connection, the control mechanism receives a signal that the ladder assembly 22 is in a storage state at the time, when the ladder assembly 22 is not in contact with the safety switch 212, the signal of the safety switch 212 is disconnected, the control mechanism can judge that the ladder assembly 22 is in a use state at the time, and the control mechanism controls the elevator to stop running so as not to collide with the ladder assembly 22.

The bracket 211 includes a fixing portion 2111 and an installation portion 2112 connected to each other, the fixing portion 2111 is installed on a side wall of the elevator shaft 10, and the installation portion 2112 extends in a direction away from the side wall of the elevator shaft 10, that is, in an inner direction of the elevator shaft 10, and is provided perpendicular to the fixing portion 2111.

Referring to fig. 5, the fixing portion 2111 is provided with a plurality of first mounting holes 2111a and a second mounting hole 2111b in a long strip shape, the second mounting hole 2111b is located between the plurality of first mounting holes 2111a, and expansion bolts are inserted into the first mounting hole 2111a and the second mounting hole 2111b to fix the fixing portion 2111 to a side wall of the elevator hoistway 10. When the mounting position of the bracket 211 needs to be adjusted, the expansion bolts in the first mounting holes 2111a are removed, and the expansion bolts in the second mounting holes 2111b are loosened, so that the fixing position of the fixing portion 2111 can be adjusted, the bracket 211 does not need to be removed completely, and the mounting and adjustment are convenient.

Referring to fig. 2 and 5, a slideway 2112a is formed on the mounting portion 2112, and the safety switch 212 is disposed on the mounting portion 2112 and near an end of the slideway 2112a away from the bottom wall of the elevator shaft 10.

The slideway 2112a includes a first passage 2112b and a second passage 2112c which are communicated with each other, an axis of the first passage 2112b is parallel to an axis of the elevator shaft 10, the second passage 2112c extends obliquely through the first passage 2112b in a direction away from the first passage 2112b and toward the ladder assembly 22 and the safety switch 212, that is, an axis of the first passage 211b is not parallel to an axis of the second passage 2112c, so that a limit portion 2112d is formed on an inner wall of the second passage 2112c, and the limit portion 2112d can limit the below-described rotating shaft 221 from sliding down into the first passage 2112 b.

Preferably, the first channel 2112b has an arc shape, that is, the first channel 2112b is an arc-shaped channel, so that the rotating shaft 221 described below can smoothly slide.

As shown in fig. 5, the bracket 211 includes a first end 201 and a second end 202 disposed opposite to each other, and the first end 201 is disposed close to the second passage 2112c relative to the second end 202, that is, the first end 201 is away from the bottom wall of the elevator shaft 10, and the distance L between the bottom wall of the second passage 2112c and the first end 201₁Is greater than the distance L from the safety switch 212 to the first end 201₂So that the safety switch 212 can be abutted and pressed when the rotating shaft 221 described below is slid into the second passage 2112 c.

As shown in fig. 2 to 4, the ladder assembly 22 includes a shaft 221 and a ladder main body 222, the shaft 221 is inserted into the chute 2112a and connected to the ladder main body 222, and the ladder main body 222 is rotatable about the shaft 221 so that the ladder main body 222 is in a storage state or a use state. When the ladder main body 222 is in the storage state, the rotating shaft 221 presses the safety switch 212, the ladder main body 222 is suspended on the safety assembly 21, is arranged close to the side wall of the elevator shaft 10 and is parallel to the axis of the elevator shaft 10, and when the elevator ascends and descends, the elevator and the ladder main body 222 can be prevented from interfering; when the ladder main body 222 needs to be used, the ladder main body 222 is separated from the safety switch 212, the ladder main body 222 can rotate around the rotating shaft 221 toward the inside of the elevator shaft 10 so that the ladder main body 222 obliquely abuts against the bottom wall of the elevator shaft 10, at this time, the ladder main body 222 is in a use state, and at this time, the control mechanism receives a signal of the safety switch 212 to control the elevator to stop running so as to avoid the elevator from colliding with the ladder main body 222.

The shaft 221 is slidable in the slide 2112a and contacts or releases the contact with the safety switch 212, when the shaft 221 contacts the safety switch 212, the shaft 221 presses the safety switch 212, the control means can determine that the ladder module 22 is in the storage state according to the signal, and when the shaft 221 releases the contact with the safety switch 212, the control means can control the elevator to stop operating according to the signal.

Specifically, the two brackets 211 are provided, and the two brackets 211 are installed in parallel to each other on the sidewall of the elevator shaft 10. The rotation shaft 221 is sequentially inserted into the two slide ways 2112a and rotatably connected to the ladder main body 222, and the rotation shaft 221 rotatably connected to the ladder main body 222 can smoothly slide in the slide ways 2112 a.

The distance between the two slideways 2112a is smaller than the length of the rotating shaft 221 so as to prevent the rotating shaft 221 from falling off from the slideways 2112 a.

Preferably, the cross section of the rotating shaft 221 is circular, but in other embodiments, the cross section of the rotating shaft 221 may have other shapes such as triangle or square.

The ladder main body 222 includes two side members 2221 and a plurality of step bars 2222, the plurality of step bars 2222 are provided in parallel with each other and spaced apart from each other between the two side members 2221, the shaft 221 is rotatably connected to the two side members 2221 and positioned at one end of the side member 2221 close to the safety assembly 21, one end of the side member 2221 is provided between the two mounting portions 2112 and is in contact with the side walls of the mounting portions 2112, respectively, so that the sliding of the shaft 221 in the slide ways 2112a can be guided and the shaft 221 is prevented from coming off the slide ways 2112 a.

The rotating shaft 221 is located at an end of the ladder main body 222 away from the bottom wall of the elevator shaft 10.

Referring to fig. 1 and 2, the distance between the inner wall of the second passage 2112c away from the first passage 2112b and the bottom wall of the elevator shaft 10 is greater than the distance between the rotating shaft 221 and the end of the ladder main body 222 away from the rotating shaft 221, so that when the rotating shaft 221 slides into the second passage 2112c and abuts against the inner wall of the second passage 2112c away from the end of the first passage 2112b, the end of the ladder main body 222 away from the rotating shaft 221 is spaced from the bottom wall of the elevator shaft 10, that is, when the ladder main body 222 is in a storage state, the ladder main body 222 is suspended and close to and parallel to the side wall of the elevator shaft 10; the distance between the inner wall of the first way 2112b away from the first way 2112b and the bottom wall of the elevator shaft 10 is smaller than the distance between the rotating shaft 221 and one end of the ladder body 222 away from the rotating shaft 221, so that when the rotating shaft 221 slides to the first way 2112b and abuts against the inner wall of the first way 2112b away from the second way 2112c, the ladder body 222 abuts against the bottom wall of the elevator shaft 10 obliquely relative to the axis of the elevator shaft 10 for the service personnel to use.

In the working process, a maintenance worker enters from the hoistway door 101 to lift the ladder climbing main body 222, so that the rotating shaft 221 slides in the slideway 2112a, the pressing on the safety switch 212 is released, the signal of the safety switch 212 is disconnected, the control mechanism controls the elevator to stop running, and when the rotating shaft 221 slides to the bottom of the first rail 2112b, the ladder climbing main body 222 obliquely abuts against the bottom of the elevator hoistway 10 to be climbed by the maintenance worker; after the maintenance is completed, the maintenance person lifts the ladder main body 222 so that the rotation shaft 221 presses the safety switch 212, and the ladder main body 222 is hung in the second lane 2112c and close to the side wall of the elevator shaft 10 while the ladder main body 222 is in the storage state.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A ladder climbing mechanism is arranged in an elevator hoistway (10), and comprises a safety component (21) and a ladder climbing component (22) with a storage state and a use state, wherein the safety component (21) comprises a safety switch (212) and a bracket (211) for hanging the ladder climbing component (22); when the ladder assembly (22) is switched between the storage state and the use state, the safety switch (212) is triggered and sends a signal to a control mechanism of the elevator;

the safety switch is characterized in that the ladder climbing assembly (22) comprises a rotating shaft (221) and a ladder climbing main body (222), the rotating shaft (221) can trigger the safety switch (212), when the ladder climbing assembly (22) is in a storage state, the ladder climbing main body (222) is hung on the support (211) and is arranged in parallel to the axis of the elevator hoistway (10), and when the ladder climbing assembly (22) is switched from the storage state to a use state, the ladder climbing main body (222) rotates towards the inside of the elevator hoistway (10) by taking the rotating shaft (221) as a rotation center, so that the ladder climbing main body (222) is switched to the use state.

2. The ladder climbing mechanism according to claim 1, wherein the safety switch (212) is arranged on the bracket (211), a slide way (2112a) is arranged on the bracket (211), one end of the slide way (2112a) is arranged close to the safety switch (212), and the rotating shaft (221) is arranged in the slide way (2112a) in a penetrating way and can slide in the slide way (2112 a).

3. The ladder climbing mechanism according to claim 2, characterized in that the bracket (211) comprises a first end (201) and a second end (202) which are arranged oppositely, the slideway (2112a) comprises a first channel (2112b) and a second channel (2112c) which are communicated with each other, the axis of the first channel (2112b) is parallel to the axis of the elevator hoistway (10), the axis of the second channel (2112c) is not parallel to the axis of the first channel (2112b), a limiting part (2112d) is arranged in the second channel (2112c), and the limiting part (2112d) can limit the rotating shaft (221) to slide into the first channel (2112 b).

4. A ladder climbing mechanism according to claim 3, characterised in that the distance between the bottom wall of the second channel (2112c) and the first end (201) is L₁The distance from the safety switch (212) to the first end (201) is L₂And L is₁>L₂。

5. A ladder climbing mechanism according to claim 3, characterised in that the second track (2112c) is arc-shaped.

6. A ladder climbing mechanism according to claim 3, characterised in that the bracket (211) comprises a fixing part (2111) and an installation part (2112) which are connected to each other and arranged vertically, the fixing part (2111) is installed to the wall of the elevator shaft (10), one side of the installation part (2112) extends in a direction away from the fixing part (2111), a slideway (2112a) is provided on the installation part (2112), the safety switch (212) is provided on the installation part (2112), and the second channel (2112c) is arranged close to the fixing part (2111) relative to the first channel (2112 b).

7. The ladder climbing mechanism according to claim 6, wherein the fixing portion (2111) has a plurality of first mounting holes (2111a) and a second elongated mounting hole (2111b), and the second mounting hole (2111b) is located between the plurality of first mounting holes (2111 a).

8. The ladder climbing mechanism according to claim 2, characterized in that the number of the brackets (211) is two, the two brackets (211) are arranged on two sides of the ladder climbing assembly (22), the rotating shaft (221) is sequentially arranged in the two slide ways (2112a) in a penetrating manner, and the distance between the two slide ways (2112a) is smaller than the length of the rotating shaft (221).

9. A ladder climbing mechanism according to claim 8, characterised in that the ladder body (222) comprises two side beams (2221) and a plurality of foot bars (2222), the foot bars (2222) being arranged in parallel and spaced apart between the side beams (2221), the shaft (221) being rotatably connected to the side beams (2221) at one end of the side beams (2221) adjacent to the safety group (21);

one end of each of the two side beams (2221) is positioned between the two brackets (211), and the side walls of one end of each of the two side beams (2221) are respectively abutted against the side walls of the two brackets (211) and can slide along the side walls of the brackets (211).

10. Elevator hoistway, characterized in that it comprises an elevator hoistway (10) and a ladder climbing mechanism according to any of claims 1-9, which is arranged in the elevator hoistway (10).

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